StarA next-gen video review platform.

See how Oddbox reduced their CPA by 46%

Real customers, filmed in their own kitchens, cut into the ads that brought Oddbox their cheapest customers yet.

See Oddbox results →
01Collect

Reviews at scale, on tap.

Challenge briefs go out to reviewers and pull back a continuous stream of authentic, first-party video, not a one-off shoot you have to keep re-commissioning.

  • Themed challenges keep footage flowing month after month
  • Real customers, real kitchens, real language
  • Material for both creative and data
02Score & segment

Your reviewers tell you who to target.

Every reviewer gives a rating and is organised into audience segments. The motivations that show up most and score highest reveal which audiences are worth chasing, before a penny of spend goes live.

  • Reviews grouped into named segments you can target on Meta
  • The pattern becomes your targeting map
Segment ranking · avg. review score/ 5.0
Waste Reducers4.9
Parents / Healthy Snacks4.9
Packed-Lunch Upgraders4.8
Supporting Local Farms4.8
Recipe-Card Effect4.8
03Select

Pick the most engaging hooks.

Within each segment, choose the reviews and quotes that tell the best story and land the strongest hook. The lines that make someone stop scrolling because they recognise their own reason to buy.

  • Hand-picked for narrative and hook strength, per segment
  • Quotes mapped back to the exact video moment they came from
  • The shortlist that becomes your creative
Picked #1Support Local · 00:14

"What I love about Oddbox is everything inside has been rescued fresh from the growers."

Picked #2Parents · 00:03

"My kids eat so much more fruit and veg now — I don't have to fight them on it."

Not selectedLocal Farms · 01:12

"It's coming straight from the farm to my door."

04Clip & create

Clip the reviews, build the assets.

Edit clips into to their strongest moments. The quotes become paid-social-ready statics alongside the video edits.

  • Video reviews clipped to hook-first vertical cuts
  • Quotes combined with product imagery and turned into static assets
  • Authenticity preserved — creative comes straight from the reviewers
15–30s
The length that converts
Almost 94% of case study spend landed in this range, and every creative that beat BAU sat inside it.
Oddbox static ad
05Enhance · score stickers

Add the stickers that reduce CPA

Segment-aligned score stickers go onto the creative, placed at the moment it lands hardest. In the Oddbox case study, the sticker versions didn't just look sharper. They performed.

  • Stickers matched to each segment's proof point
  • Placed within the Meta safe zone, off the reviewer's face
  • Tested head-to-head against clean, no-sticker cuts
The Oddbox result
−12%

Lower CPA on score-sticker ads versus no stickers — with ROAS 13% higher and link CTR 3% higher on the same comparison.

Over 120 days the pattern held on all three headline metrics. 82% of case-study spend followed the sticker versions, with the algorithm favouring them from launch.

No sticker
Score stickerWinner
06Measure & feed back

Results that write the next brief.

The high performers don't just get reported; they decide which segments to scale, which to cut, and what the next round of challenges should ask for.

  • Per-creative and per-segment reporting
  • Learnings loop straight into the next challenge brief
Top-performing segments
−9% CPA vs BAU
WasteWarriors
29.7% of spend · best performer at scale
−3% CPA vs BAU
ParentsSwappingHealthySnacks
4.0% of spend · beat BAU on a fraction of the budget
Best individual creatives · by CPA
In their words

Paid influencers and UGC creators just weren't converting like they used to. Working with Watch Humans meant getting a wide range of real reviewers and meant we could target several different cohorts properly instead of pointing one message at everyone. Our best performing cut came in 46% below our business-as-usual CPA, and one creative went on to drive 32% of all purchases in the account at a CPA 12% below the account average. Less creative fatigue too. It's given us a new benchmark for what effective, human-led storytelling can look like in paid.

Ali Scott
Ali Scott